(x-y)²=x²-2xy+y²(3x-5y)²=9x²-30xy+25y² (6x+y)²=36x²+12xy+y²(2x-7y)²=4x²-28xy+49y²(тут y а не х)(x-10)²=x²-20x+100(8x-3)²=64x²-48x+9
(x-y)²=x²-2xy+y²
(3x-5y)²=9x²-30xy+25y²
(6x+y)²=36x²+12xy+y²
(2x-7y)²=4x²-28xy+49y²(тут y а не х)
(x-10)²=x²-20x+100
(8x-3)²=64x²-48x+9